/*
 * proxy.swg :  SWIG include file for defining automatic proxy classes
 *
 * ====================================================================
 * Copyright (c) 2000-2003 CollabNet.  All rights reserved.
 *
 * This software is licensed as described in the file COPYING, which
 * you should have received as part of this distribution.  The terms
 * are also available at http://subversion.tigris.org/license-1.html.
 * If newer versions of this license are posted there, you may use a
 * newer version instead, at your option.
 *
 * This software consists of voluntary contributions made by many
 * individuals.  For exact contribution history, see the revision
 * history and logs, available at http://subversion.tigris.org/.
 * ====================================================================
 */

#ifdef SWIGPYTHON

/* Note: See the big comment at the top of proxy_apr.swg for details on
 *       how this _is_valid stuff actually works.  It's part of the magic
 *       that lets us gracefully handle objects that are allocated from
 *       a pool that's been cleared or destroyed.
 */

/* Default code for all wrapped proxy classes in Python */
%define %proxy_pythoncode(TYPE)
%pythoncode %{
  def set_parent_pool(self, parent_pool=None):
    """Create a new proxy object for TYPE"""
    import libsvn.core, weakref
    self.__dict__["_parent_pool"] = \
      parent_pool or libsvn.core.application_pool;
    if self.__dict__["_parent_pool"]:
      self.__dict__["_is_valid"] = weakref.ref(
        self.__dict__["_parent_pool"]._is_valid)

  def assert_valid(self):
    """Assert that this object is using valid pool memory"""
    if "_is_valid" in self.__dict__:
      assert self.__dict__["_is_valid"](), "Variable has already been deleted"

  def __getattr__(self, name):
    """Get an attribute from this object"""
    self.assert_valid()
    value = _swig_getattr(self, self.__class__, name)
    try:
      old_dict = self.__dict__["_member_dicts"][name]
      value.__dict__["_parent_pool"] = old_dict.get("_parent_pool")
      value.__dict__["_member_dicts"] = old_dict.get("_member_dicts")
      value.__dict__["_is_valid"] = old_dict.get("_is_valid")
      value.assert_valid()
    except KeyError:
      pass
    return value

  def __setattr__(self, name, value):
    """Set an attribute on this object"""
    self.assert_valid()
    try:
      self.__dict__.setdefault("_member_dicts",{})[name] = value.__dict__
    except AttributeError:
      pass
    return _swig_setattr(self, self.__class__, name, value)
%}
%enddef

/* Define a proxy for wrapping an existing struct */
%define %proxy(TYPE)
%extend TYPE {
%proxy_pythoncode(TYPE);
}
%enddef

/* Define a proxy class for wrapping an opaque struct */
%define %opaque_proxy(TYPE)
struct TYPE {
%extend {
%proxy_pythoncode(TYPE);
}
}
%enddef

#endif